Brush seal

Abstract

In a brush seal for sealing off the gap between a rotating and a stationary component, a plurality of radially inwardly running, elastically flexible brushes are held at one end in a basic body seated in a first of the components. They bear sealingly at the other end on the annular other component. The brushes bear, over their predominant longitudinal extent, on a guide plate. Both the basic body and the guide plate are seated in a groove of one of the components. The basic body and the guide plate are held in their mutual position by means of a wire mortised into the groove.

What is claimed as new and desired to be secured by Letters Patent of the United States is:  
     
       1. A brush seal for sealing off a gap between a rotary member mounted for rotation about an axis and a stationary member surrounding the rotary member, the brush seal comprising: 
       a circumferential groove in the stationary member, the groove having a first outer wall and a second outer wall, a basic body received in the groove in abutting relation with the first outer wall, a plurality of brushes secured in the basic body and extending radially inward, relative to the axis of rotation of the rotary member, a guide plate received in the groove on one side of the basic body, and a ring received in the groove on the opposite side of the basic body, the guide plate having an axial shoulder, the groove including a retainer surface for engaging the axial shoulder, and the ring positioned in the groove in engagement with second outer wall, the second outer wall being spaced from the rotating member and the ring abutting the basic body on one side and abutting the radial wall of the groove, the radial wall of the groove having a circumferential step, and the ring being retained in the groove between the second outer wall and the step.  
     
     
       2. The brush seal according to  claim 1 , wherein the ring is mortised into the groove. 
     
     
       3. The brush seal according to  claim 1 , wherein the brushes are secured in an opening in the basic body, and the guide plate and the ring are positioned outside of the opening of the basic body. 
     
     
       4. A brush seal for sealing off a gap between a rotary member mounted for rotation about an axis and a stationary member surrounding the rotary member, the brush seal comprising: 
       a circumferential groove in the stationary member;  
       a basic body received in the groove in abutting relation with a first outer wall;  
       a plurality of brushes secured in the basic body and extending radially inward, relative to the axis of rotation of the rotary member;  
       a guide plate received in the groove on one side of the basic body; and  
       a ring received in the groove and abutting the basic body on one side of the ring and abutting a radial wall of the groove on an opposite side of the ring.  
     
     
       5. The brush seal according to  claim 4 , wherein the ring is retained in the groove between a second outer wall and a circumferential step.